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Olympus E-M5 vs Nikon D750

The Olympus OM-D E-M5 and the Nikon D750 are two enthusiast cameras that were revealed to the public, respectively, in February 2012 and September 2014. The E-M5 is a mirrorless interchangeable lens camera, while the D750 is a DSLR. The cameras are based on a Four Thirds (E-M5) and a full frame (D750) sensor. The Olympus has a resolution of 15.9 megapixels, whereas the Nikon provides 24.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Olympus E-M5
versus
Nikon D750
Olympus E-M5   Nikon D750
Mirrorless system camera Digital single lens reflex
Micro Four Thirds lenses Nikon F mount lenses
15.9 MP – Four Thirds sensor 24.2 MP – Full Frame sensor
1080/60i Video 1080/60p Video
ISO 200-25,600 ISO 100-12,800 (50 - 51,200)
Electronic viewfinder (1440k dots) Optical viewfinder
3.0" LCD – 610k dots 3.2" LCD – 1229k dots
Tilting touchscreen Tilting screen (no touchscreen)
9 shutter flaps per second 6 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyWeathersealed body
360 shots per battery charge1230 shots per battery charge
122 x 89 x 43 mm, 425 g 141 x 113 x 78 mm, 750 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Olympus OM-D E-M5 and the Nikon D750? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

An illustration of the physical size and weight of the Olympus E-M5 and the Nikon D750 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.

The E-M5 can be obtained in two different colors (black, silver), while the D750 is only available in black.

Size Olympus E-M5 vs Nikon D750
Compare E-M5 versus D750 top
Comparison E-M5 or D750 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D750 is considerably larger (47 percent) than the Olympus E-M5. Moreover, the D750 is substantially heavier (76 percent) than the E-M5. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (E-M5) and the Nikon Lens Catalog (D750). Mirrorless cameras, such as the Olympus E-M5, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the E-M5 gets 360 shots out of its Olympus BLN-1 battery, while the D750 can take 1230 images on a single charge of its Nikon EN-EL15 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 1,299ebay.com
2.
 
Nikon D750 141 mm 113 mm 78 mm 750 g 1230 Y Sep 2014 2,299ebay.com
3.
 
Nikon D600 141 mm 113 mm 82 mm 850 g 900 Y Sep 2012 2,099ebay.com
4.
 
Nikon D610 141 mm 113 mm 82 mm 850 g 900 Y Oct 2013 1,999ebay.com
5.
 
Nikon D700 147 mm 123 mm 77 mm 1074 g 1000 Y Jul 2008 2,999ebay.com
6.
 
Nikon D780 144 mm 116 mm 76 mm 840 g 2260 Y Jan 2020 2,299 amazon.com
7.
 
Nikon Df 144 mm 110 mm 67 mm 760 g 1400 Y Nov 2013 2,749ebay.com
8.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399ebay.com
9.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099ebay.com
10.
 
Olympus E-P5 122 mm 69 mm 37 mm 420 g 330 n May 2013 999ebay.com
11.
 
Olympus E-PL5 111 mm 64 mm 38 mm 325 g 360 n Sep 2012 599ebay.com
12.
 
Olympus E-PL7 115 mm 67 mm 38 mm 357 g 350 n Aug 2014 599ebay.com
13.
 
Olympus E-PM2 110 mm 64 mm 34 mm 269 g 360 n Sep 2012 499ebay.com
14.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 1,199ebay.com
15.
 
Panasonic GH3 133 mm 93 mm 82 mm 550 g 540 Y Sep 2012 1,299ebay.com
16.
 
Panasonic GX7 123 mm 71 mm 55 mm 402 g 350 n Aug 2013 999ebay.com
17.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The E-M5 was launched at a markedly lower price (by 43 percent) than the D750, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Olympus E-M5 features a Four Thirds sensor and the Nikon D750 a full frame sensor. The sensor area in the D750 is 283 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the E-M5 has a native 4:3 aspect ratio, while the one in the D750 offers a 3:2 aspect.

Olympus E-M5 and Nikon D750 sensor measures

With 24.2MP, the D750 offers a higher resolution than the E-M5 (15.9MP), but the D750 nevertheless has larger individual pixels (pixel pitch of 5.97μm versus 3.76μm for the E-M5) due to its larger sensor. Moreover, the D750 is a much more recent model (by 2 years and 7 months) than the E-M5, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Nikon D750 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D750 for good quality output (200 dots per inch) amounts to 30.1 x 20.1 inches or 76.4 x 51 cm, for very good quality (250 dpi) 24.1 x 16.1 inches or 61.1 x 40.8 cm, and for excellent quality (300 dpi) 20.1 x 13.4 inches or 50.9 x 34 cm. The corresponding values for the Olympus E-M5 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

The Olympus OM-D E-M5 has a native sensitivity range from ISO 200 to ISO 25600. The corresponding ISO settings for the Nikon D750 are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 50-51200.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

E-M5 versus D750 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the D750 offers substantially better image quality than the E-M5 (overall score 22 points higher). The advantage is based on 2 bits higher color depth, 2.2 EV in additional dynamic range, and 1.8 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
2.
 
Nikon D750 Full Frame 24.2 6016 40161080/60p24.814.5295693
3.
 
Nikon D600 Full Frame 24.2 6016 40161080/30p25.114.2298094
4.
 
Nikon D610 Full Frame 24.2 6016 40161080/30p25.114.4292594
5.
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380
6.
 
Nikon D780 Full Frame 24.3 6048 40244K/30p25.314.3287795
7.
 
Nikon Df Full Frame 16.2 4928 3280none24.613.1327989
8.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
9.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
10.
 
Olympus E-P5 Four Thirds 15.9 4608 34561080/30p22.812.489572
11.
 
Olympus E-PL5 Four Thirds 15.9 4608 34561080/30p22.812.388972
12.
 
Olympus E-PL7 Four Thirds 15.9 4608 34561080/30p22.712.487372
13.
 
Olympus E-PM2 Four Thirds 15.9 4608 34561080/30p22.712.293272
14.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
15.
 
Panasonic GH3 Four Thirds 15.9 4608 34561080/60p22.712.481271
16.
 
Panasonic GX7 Four Thirds 15.8 4592 34481080/60p22.612.271870
17.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the D750 provides a faster frame rate than the E-M5. It can shoot movie footage at 1080/60p, while the Olympus is limited to 1080/60i.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M5 has an electronic viewfinder (1440k dots), while the D750 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the D750 has a higher magnification than the one of the E-M5 (0.70x vs 0.58x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Olympus E-M5 and Nikon D750 in connection with corresponding information for a sample of similar cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Olympus E-M51440 n3.0 / 610 tilting Y 1/4000s 9.0/s n Y
2.
 
Nikon D750optical Y3.2 / 1229 tilting n 1/4000s 6.0/s Y n
3.
 
Nikon D600optical Y3.0 / 921 fixed n 1/4000s 5.5/s Y n
4.
 
Nikon D610optical Y3.2 / 921 fixed n 1/4000s 6.0/s Y n
5.
 
Nikon D700optical Y3.0 / 922 fixed n 1/8000s 8.0/s Y n
6.
 
Nikon D780optical Y3.2 / 2359 tilting Y 1/8000s 12.0/s n n
7.
 
Nikon Dfoptical Y3.2 / 921 fixed n 1/4000s 5.5/s n n
8.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
9.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
10.
 
Olympus E-P5optional n3.0 / 1037 tilting Y 1/8000s 9.0/s Y Y
11.
 
Olympus E-PL5optional n3.0 / 460 tilting Y 1/4000s 8.0/s n Y
12.
 
Olympus E-PL7optional n3.0 / 1037 tilting Y 1/4000s 8.0/s n Y
13.
 
Olympus E-PM2optional n3.0 / 460 fixed Y 1/4000s 8.0/s n Y
14.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
15.
 
Panasonic GH31746 n3.0 / 614 swivel Y 1/4000s 6.0/s Y n
16.
 
Panasonic GX72760 n3.0 / 1040 tilting Y 1/8000s 5.0/s Y Y
17.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-M5 and the D750 is in-body image stabilization (IBIS). The E-M5 reduces the risk of handshake-induced blur with all attached lenses, while the D750 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The Nikon D750 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the E-M5 and the D750 write their files to SDXC cards. The D750 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M5 only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Olympus OM-D E-M5 and Nikon D750 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Olympus E-M5Ystereo / mono--mini2.0---
2.
 
Nikon D750Ystereo / monoYYmini2.0Y--
3.
 
Nikon D600Ymono / monoYYmini2.0---
4.
 
Nikon D610Ymono / monoYYmini2.0---
5.
 
Nikon D700Y- / ---mini2.0---
6.
 
Nikon D780Ystereo / monoYYmini3.1Y-Y
7.
 
Nikon DfY- / ---mini2.0---
8.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
9.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
10.
 
Olympus E-P5Ystereo / mono--micro2.0Y--
11.
 
Olympus E-PL5Ystereo / mono--mini2.0---
12.
 
Olympus E-PL7Ystereo / mono--micro2.0Y--
13.
 
Olympus E-PM2Ystereo / mono--mini2.0---
14.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
15.
 
Panasonic GH3Ystereo / monoYYmini2.0Y--
16.
 
Panasonic GX7Ystereo / mono--mini2.0YY-
17.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-

It is notable that the D750 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the E-M5 does not provide wifi capability.

Studio photographers will appreciate that the Nikon D750 (unlike the E-M5) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the E-M5 and the D750 have been discontinued, but can regularly be found used on ebay. The E-M5 was replaced by the Olympus E-M5 II, while the D750 was followed by the Nikon D780. Further information on the features and operation of the E-M5 and D750 can be found, respectively, in the Olympus E-M5 Manual (free pdf) or the online Nikon D750 Manual.

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Review summary

So what is the bottom line? Which of the two cameras – the Olympus E-M5 or the Nikon D750 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Advantages of the Olympus OM-D E-M5:

  • More framing info: Has an electronic viewfinder that displays shooting data.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster burst: Shoots at higher frequency (9 vs 6 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (122x89mm vs 141x113mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 325g or 43 percent) and hence easier to carry around.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • More affordable: Was introduced into a lower priced category (43 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2012).

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Reasons to prefer the Nikon D750:

  • More detail: Has more megapixels (24.2 vs 15.9MP), which boosts linear resolution by 26%.
  • Better image quality: Scores substantially higher (22 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.2 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.8 stops ISO advantage).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.70x vs 0.58x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 610k dots).
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Gets more shots (1230 versus 360) out of a single battery charge.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Reflects 2 years and 7 months of technical progress since the E-M5 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the D750 is the clear winner of the contest (20 : 9 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

E-M5 09:20 D750

How about other alternatives? Do the specifications of the Olympus E-M5 and the Nikon D750 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the E-M5 or the D750. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Olympus E-M54/5+ +..80/1004.5/55/5 Feb 2012 1,299ebay.com
2.
 
Nikon D7505/5+ +4/590/1004.5/54.5/5 Sep 2014 2,299ebay.com
3.
 
Nikon D6004/5+ +..87/1005/54.5/5 Sep 2012 2,099ebay.com
4.
 
Nikon D6104/5+ +..87/1004.5/54.5/5 Oct 2013 1,999ebay.com
5.
 
Nikon D700..89/100..+ +4.5/54.5/5 Jul 2008 2,999ebay.com
6.
 
Nikon D7805/5..5/587/1004.5/54.5/5 Jan 2020 2,299 amazon.com
7.
 
Nikon Df4/5....81/1004/54/5 Nov 2013 2,749ebay.com
8.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 1,399ebay.com
9.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 1,099ebay.com
10.
 
Olympus E-P55/5+ +..78/1004.5/55/5 May 2013 999ebay.com
11.
 
Olympus E-PL53/5+ +....4.5/54.5/5 Sep 2012 599ebay.com
12.
 
Olympus E-PL74/5+....5/54/5 Aug 2014 599ebay.com
13.
 
Olympus E-PM23/5....77/1005/54.5/5 Sep 2012 499ebay.com
14.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 1,199ebay.com
15.
 
Panasonic GH35/5+ +..79/1004.5/54.5/5 Sep 2012 1,299ebay.com
16.
 
Panasonic GX74/5+..79/1005/55/5 Aug 2013 999ebay.com
17.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 1,199ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Olympus E-M5 vs Nikon D750

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Olympus E-M5 Nikon D750
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Micro Four Thirds lenses Nikon F mount lenses
    Launch Date February 2012 September 2014
    Launch Price USD 1,299 USD 2,299
    Sensor Specs Olympus E-M5 Nikon D750
    Sensor Technology CMOS CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.9 x 24.0 mm
    Sensor Area 224.9 mm2 861.6 mm2
    Sensor Diagonal 21.6 mm 43.2 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 15.9 Megapixels 24.2 Megapixels
    Image Resolution 4608 x 3456 pixels 6016 x 4016 pixels
    Pixel Pitch 3.76 μm 5.97 μm
    Pixel Density 7.08 MP/cm2 2.80 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60i Video 1080/60p Video
    ISO Setting 200 - 25,600 ISO 100 - 12,800 ISO
    ISO Boost no Enhancement 50 - 51,200 ISO
    Image Processor TruePic VI EXPEED 4
    DXO Sensor Quality (score) 71 93
    DXO Color Depth (bits) 22.8 24.8
    DXO Dynamic Range (EV) 12.3 14.5
    DXO Low Light (ISO) 826 2956
    Screen Specs Olympus E-M5 Nikon D750
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.58x 0.70x
    Viewfinder Resolution 1440k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.2inch
    LCD Resolution 610k dots 1229k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Olympus E-M5 Nikon D750
    Focus System Contrast-detect AF Phase-detect AF
    Continuous Shooting 9 shutter flaps/s 6 shutter flaps/s
    Shutter Life Expectancy100 000 actuations150 000 actuations
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Olympus E-M5 Nikon D750
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Body Specs Olympus E-M5 Nikon D750
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Olympus BLN-1 Nikon EN-EL15
    Battery Life (CIPA)360 shots per charge1230 shots per charge
    Body Dimensions 122 x 89 x 43 mm
    (4.8 x 3.5 x 1.7 in)
    141 x 113 x 78 mm
    (5.6 x 4.4 x 3.1 in)
    Camera Weight 425 g (15.0 oz) 750 g (26.5 oz)
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